162421985 has 16 divisors (see below), whose sum is σ = 216233280. Its totient is φ = 116120640.

The previous prime is 162421967. The next prime is 162421993. The reversal of 162421985 is 589124261.

It is not a de Polignac number, because 162421985 - 2⁶ = 162421921 is a prime.

It is a super-2 number, since 2×162421985² = 52761802422680450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21782 + ... + 28271.

It is an arithmetic number, because the mean of its divisors is an integer number (13514580).

Almost surely, 2^162421985 is an apocalyptic number.

It is an amenable number.

162421985 is a deficient number, since it is larger than the sum of its proper divisors (53811295).

162421985 is a wasteful number, since it uses less digits than its factorization.

162421985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50128.

The product of its digits is 34560, while the sum is 38.

The square root of 162421985 is about 12744.4884165666. The cubic root of 162421985 is about 545.6090993303.

The spelling of 162421985 in words is "one hundred sixty-two million, four hundred twenty-one thousand, nine hundred eighty-five".